Holdback



(No' Model.)

0. I. CALVERT.

HOLDBAGK.

No. 245,346. Patented Aug. 9, P881.

WITNESSES! I N. PETERS. Pholo-Lyll NITED STATES PATENT OFFICE.

OALLENDER I. CALVERT, OF PHILADELPHIA, PENNSYLVANIA.

HOLDBACK.

SPECIFICATION forming part of Letters Patent No. 245,346, dated August 9, 1881.

Application filed June 15, 1881.

To all whom it may concern Be it known that I, OALLENDERI. CALVERT, a citizen of the United States, residing in the city and countyofPhiladelphia, State ofPennsylvania, have invented a new and useful Improvement in Automatic Breeching-Holders or Holdbacks, Neck-Yokes, Snap-Hooks, 850., which improvement is fully set forth in the following specification and accompanying drawings, in which- I Figure l is a side elevation of the breechingholder, &c., embodying my invention. Fig. 2 is a longitudinal section thereof. Fig. 3 is a bottom view thereof.

Similar letters of reference indicate corresponding parts in the several figures.

My invention relates to improvements in breeching-hooks or holdbacks formed with spring-tongues; and it consists in passing the free end of the spring beyond the wall of the slot or throat of the attaching-plate, whereby both ends of the spring are behind said plate, and said free end is incapable of being pulled out of the plate or receiving lateral motions.

It also consists in providing the back of the attaching-plate with a plate on which the free end of the spring may rub, thus preventing wearing action on the wood of the shafts.

Referring to the drawings, A represents a born or book; and B an attaching-plate cast therewith or secured thereto, and adapted to be fastened to a shaft, tongue, &c., or suitable part of harness. In the face of the plate is a longitudinally-extending throat, C, and the back of the plate is channeled, as at a, for the reception of a spring, D, consisting of a flat strip of proper metal fitted or secured at one end to the rear of the plate back of the hook A,bent as at b, and protruding through the throat O, and having the other end free in the relative part of the channel a, and extending past the edge ofthe throat, so as to be retained within the channel, it being noticed that the bent portion b ofthe spring projects as a tongue toward the end 0 of the hook A in the space existing between said end 0 of the hook and the face of the plate B, and, if desired, may be in contact with said end.

When the strap is to be attached to the hook the loop thereof is presented sidewise to the end of the hook, as shown by the dotted lines, Fig. 2, and forced inwardly, thus overcoming and pressing in the spring D. As soonas the strap has cleared the end of the hook the sprlng (No model.)

returns to its normal position, thus guarding the end of the hook and preventing displacementof the strap, the operative position whereof is shown in Fig. 1.

In order to remove the strap from the hook, the loop thereof is applied sidewise to the end of the hook, similar to that shown by the dotted lines, Fig. 2, and forced outwardly, overcoming the power of the spring, and the strap thus leaves the hook, as is evident.

As the spring-snip D closes the throat 0 it prevents pieces of dirt, 820., entering the back of the plate B; and should said strip break, it may be readily removed and replaced.

Back of the plate B is secured a metal plate, B, which is so disposedbetween the spring D and shaft that the free end of said spring, during itsmotions, may rub against said plate B. By this provision the wood-work of the shaft is not chafed or worn, and when the said plate is worn it maybe removed and replaced by a new plate.

I am aware that holdbacks have been formed of a hook, an attaching-plate, and a springtongue, the free end of the latter being entirely outside of said plate without being controlled in either vertical or lateral motions, and therefore disclaim the same.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The hook A and attachingplate B with throat G,in combination with the spring-tongue D, connected at one end to said plate B, and having its free end within the channeled back of the plate and extended beyond the edge of the throat, substantially as and for the purpose set forth.

2. The book A, plate B, and spring-tongue D, in combination with the back rubbing-plate, B, substantially as and for the purpose set forth.

3. The hook A and attaching-plate B with throat (J, in combination with the spring-tongue D and rubbing-plate B, said tongue having its free end within the channeled back of the plate and extended beyond the edge of the throat, and the plate B being secured back of the tongue, substantially as and for the purpose set forth.

UALLENDER I. CALVERT.

Witnesses:

GEO. W. HASLET, J. S. MCKENZIE. 

